This R2 unit has seen a lot of action.
Besides delivering information vital to the survival of the rebellion, he has also been electrocuted by Jawas, stolen, sold, scorched by blasters, and yes, even chewed up and spit out by a swamp creature.
He has been called an overweight glob of grease, a near-sighted scrap pile, a malfunctioning little twerp, and a stupid lump.
Sure, there may have been a few times when this little guy malfunctioned. He sometimes has trouble traveling in a straight line. But despite his shortfalls, he always seems to come in handy when saving the galaxy from the clutches of the evil empire.
Whether it be his knowledge about the Millennium Falcon’s hyperdrive, shutting down garbage mashers, opening doors, or even co-piloting the X-Wing that blew up the death star, if offered a new droid because this one seems “a little beat up,” you may want to respond: “Not on your life.”
You keep the plums, we’ll pick the lemons.